void EbookController::TriggerLayout()
{
Size s = ctrls->pagesLayout->GetPage1()->GetDrawableSize();
SizeI size(s.Width, s.Height);
if (size.IsEmpty()) {
// we haven't been sized yet
return;
}
// CrashIf(size.dx < 100 || size.dy < 40);
if (!doc.IsDocLoaded())
return;
if (pageSize == size) {
//lf("EbookController::TriggerLayout() - skipping layout because same as last size");
return;
}
//lf("(%3d,%3d) EbookController::TriggerLayout",size.dx, size.dy);
pageSize = size; // set it early to prevent re-doing layout at the same size
StopFormattingThread();
CrashIf(incomingPages);
incomingPages = new Vec<HtmlPage*>(1024);
HtmlFormatterArgs *args = CreateFormatterArgsDoc(doc, size.dx, size.dy, &textAllocator);
formattingThread = new EbookFormattingThread(doc, args, this, currPageReparseIdx, cb);
formattingThreadNo = formattingThread->GetNo();
formattingThread->Start();
UpdateStatus();
}
// we don't use CreateFormatterArgsDoc() to not introduce dependency
// on gGlobalPrefs in EngineDump
HtmlFormatterArgs *CreateFormatterArgsDoc2(Doc doc, int dx, int dy, PoolAllocator *textAllocator)
{
HtmlFormatterArgs *args = CreateFormatterArgsDoc(doc, dx, dy, textAllocator);
args->SetFontName(GetFontName());
args->fontSize = GetFontSize();
return args;
}
static int FormatWholeDoc(Doc& doc) {
int PAGE_DX = 640;
int PAGE_DY = 520;
PoolAllocator textAllocator;
HtmlFormatterArgs *formatterArgs = CreateFormatterArgsDoc(doc, PAGE_DX, PAGE_DY, &textAllocator);
HtmlFormatter *formatter = doc.CreateFormatter(formatterArgs);
int nPages = 0;
for (HtmlPage *pd = formatter->Next(); pd; pd = formatter->Next()) {
delete pd;
++nPages;
}
delete formatterArgs;
delete formatter;
return nPages;
}
void EbookController::TriggerBookFormatting()
{
Size s = ctrls->page->GetDrawableSize();
SizeI size(s.Width, s.Height);
if (size.IsEmpty()) {
// we haven't been sized yet
return;
}
CrashIf(size.dx < 100 || size.dy < 40);
if (!doc.IsEbook())
return;
if (pageSize == size) {
//lf("EbookController::TriggerBookFormatting() - skipping layout because same as last size");
return;
}
//lf("(%3d,%3d) EbookController::TriggerBookFormatting", dx, dy);
pageSize = size; // set it early to prevent re-doing layout at the same size
HtmlPage *newPage = PreserveTempPageShown();
if (newPage) {
CrashIf((formattingTemp.reparseIdx != 0) &&
(formattingTemp.reparseIdx != newPage->reparseIdx));
} else {
CrashIf(formattingTemp.reparseIdx != 0);
}
StopFormattingThread();
DeletePages(&pagesFromBeginning);
DeletePages(&pagesFromPage);
CrashIf(formattingTemp.pagesFromBeginning.Count() > 0);
CrashIf(formattingTemp.pagesFromPage.Count() > 0);
ShowPage(newPage, newPage != NULL);
HtmlFormatterArgs *args = CreateFormatterArgsDoc(doc, size.dx, size.dy, &textAllocator);
formattingThread = new EbookFormattingThread(doc, args, this);
formattingThreadNo = formattingThread->GetNo();
CrashIf(formattingTemp.reparseIdx < 0);
CrashIf(formattingTemp.reparseIdx > (int)args->htmlStrLen);
formattingThread->reparseIdx = formattingTemp.reparseIdx;
formattingThread->Start();
UpdateStatus();
}
static RenderedBitmap *RenderFirstDocPageToBitmap(Doc doc, SizeI pageSize, SizeI bmpSize, int border)
{
PoolAllocator textAllocator;
HtmlFormatterArgs *args = CreateFormatterArgsDoc(doc, pageSize.dx - 2 * border, pageSize.dy - 2 * border, &textAllocator);
TextRenderMethod renderMethod = args->textRenderMethod;
HtmlFormatter *formatter = doc.CreateFormatter(args);
HtmlPage *pd = formatter->Next();
delete formatter;
delete args;
args = nullptr;
if (!pd)
return nullptr;
Bitmap pageBmp(pageSize.dx, pageSize.dy, PixelFormat24bppRGB);
Graphics g(&pageBmp);
Rect r(0, 0, pageSize.dx, pageSize.dy);
r.Inflate(1, 1);
SolidBrush br(Color(255, 255, 255));
g.FillRectangle(&br, r);
ITextRender *textRender = CreateTextRender(renderMethod, &g, pageSize.dx, pageSize.dy);
textRender->SetTextBgColor(Color(255,255,255));
DrawHtmlPage(&g, textRender, &pd->instructions, (REAL)border, (REAL)border, false, Color((ARGB)Color::Black));
delete pd;
delete textRender;
Bitmap res(bmpSize.dx, bmpSize.dy, PixelFormat24bppRGB);
Graphics g2(&res);
g2.SetInterpolationMode(InterpolationModeHighQualityBicubic);
g2.DrawImage(&pageBmp, Rect(0, 0, bmpSize.dx, bmpSize.dy),
0, 0, pageSize.dx, pageSize.dy, UnitPixel);
HBITMAP hbmp;
Status ok = res.GetHBITMAP((ARGB)Color::White, &hbmp);
if (ok != Ok)
return nullptr;
return new RenderedBitmap(hbmp, bmpSize);
}
